If you all read the whole thread, his main problem is ps_accounts !!!
The point is that his account is registered to the domain, but he transferred it to the Prestashop subdirectory.
Therefore, logging into PS accounts is not valid.
I wrote the solution.
It's simple to put in phpMyAdmin, run sql and done.
Then he can register your store in ps_accounts.
DELETE FROM ps_configuration where name like "%ps_accounts%" or name like "%psx_uuid%"